Traction-engine.



W. DURRAN.

TRAGTION ENGINE.

, APPLIIGATION FILED AUG. 14, 1911. 1,03'1?,222 Patented sept. 3, 1912.

2 SHEETS-SHEET 1.

'Ill

W. DURRAN.

TRAGTION ENGINE. 'APPLIGATIONTILED AUG.14, 1911.

Wmv/aow /Q/MQ/- y 5% Patented Sept, 3, 1912.

2 SHEETS-SHEET l trated vin the WILLIAM DUREN, Ol? PERGY TOV/'NSHXR @Ngel-NQ, NDA.

@ammonio-nemen.

Specification ofiettrs'lratent.

.Patented ejgit. 3. irai?.

.Application le August le, 1911. Serial No. 113,959.

To all ta/710m it may eminem:

Be it known that I, ViLLIAM DURRAN, resident of the township Voi" Percy. in the Province of Qntario, in the Dominion of Canada, have invented eert-ain new and use ful Improvements in raetioirf-Engines; and

I do hereby declare that the olioWing-ie a i'ulLelear, anti exact deeerintion oi? the same.- v

The invention relates to .im-'a'overnents in' traction enginesyand partieuiarly the power, vtransnfutting device to the Wheels,` as described in the present specification and illus accompanying drawings that form part of the saine,

The invention consists essentially in the novel construction anni arrangement of parte, whereby power, is transinittecl from a main driving shaft to the :front and rear Wheels and the front Wheels permitted a certain fiexibility Without disturbing the position of tbe driving shaft.

The objects of the invention are to devise a form of traction engine which will 3e 'very eiiioient under all the conditions of the surfaces of the ground over which sairl engine travels, to utilize the maximum power from the driving mechanism, and' generally to proviie a comparatively simple and Very {inrable maenine.

n the drawings, Figure 1 a riiagranimatie View, showing the preferred construction of .the frame, the, positions of the Wheels and the arrangement oi the gear Connections.l Fig. 2 is a cross sectional View on the line A-B in Fig. 1. Fin. 3 is a cross sectional View on the line C-- in Fig'. 1.

Like numerals of reference indicati@ corresponding parts in each figure.

.Referring to the drawings, 1 are the Wheels :forming the front drivers. 2 are the wheels forming the rear'. drivers, both sets of Wheels being made in the onetoinary form as used in traction engines, erin any other suitable Way.

3 is the front axle structure, formeel ofiv the bottom bar 4l, saiol bottom bar having the bearings '5 at each end thereof/and the frame 6 supported on said bottom bar having a cent-ral vertical ,bearing tigre vertical bearings 8 at each side thereof being iny alinenient with the' bearings 5 and the horizontal .bearings 9. adjacent .to tl-1e:

vertical bearings 8.

1G are vertical shafts bearings 5 and 5. i 11 are axies at their inner ends xeelly mounte on the vertieal shafts 1Q adjacent to the bearings 5 on the inner sides 'enel ournalecl inv the having the arms 12 therefrom projecting' laterally and forwardly, saifl, arms being ofset at their ends. iiie Wheels 1 are loosely .mounted on triey axles 11.

13 are bevel gear Wheels ixerlly seeurerl to the inner faces, of thewlieels 1 and en.

circling" the axies 11 and coneentrietherewith. l

14 is; e. shaft journaiedin the bearings 9 extending beyond. nearings'at each end thereof and terminating eolie-@ent to tiie vertical shaft 1G.

15 is a. gear Wheel inonnteI on t Shaft le intermediate of the olistance between the bearings S.

16 are bei'el pinions monntei one at eaeli end of the surft- 14 anti` eoeetingwitii the bevel pinione 17 loosely rnounteii on the vertical shafts 10, bevel pinions 17 be ing double faeefl pinions that is to says having; upper ani?L lower bevel faces, the lower bevel face eoaetino with the .bevel gear Wheels 13 and thus operatively connecting the shaft 14. with the Wheels 1 for the p spose of driving the latter.

18 is a Vertieal el1aft, journaleol in the central bearing 7 and having at the lower enel thereof, a :forwardly extending arm 19, said arm having an ofi-set 'and said ori-set being joined to the oisetsA of the arms-12 by the links 20, thus providing a steeringl gear, preferably operated by the Worm Wheel 21 mounted on the lower end of said shaft .18 and enacting With the Worm 291.

is a frame preferably part circular in shape and cariyin at the eurvedeflge thereoi2 the track 24,v said frame'l being rigirlly secured to the front axle structure 3 at the rear side thereof and having the gear Wheel opening 25 through which the gea1'-wi1eel 15 projects.

is a Segment rail, traveling in thetrackway 24: andeuitably beldto the irameQS by logs or the particular formation of said track-Way., the said seg-nient rail 26 'swinging around in said track-Way ina comparatively free manner.

27 are beams rigidly secured to. the aeg;

-finent rail E26 in up )er and lower pairs and extending rearwar ly.. i

28 is a bracket rigidly secured to the frame 23 and forming an upper bearing for the vertical steering shaft 13.

29 is the lmain shaft fra'rnerarrying the bearing 30 for thc main shaft and 'the bearinv 31 for an auxiliary shaft, said frame 29 being supported by the beams 27, slightly to the rear of the frame 23.

32 is an auxiliary shaft journaled in the auxiliary bearing 31 and a corresponding bearing in the frame 23. v

33 is a gear Wheel, having the two toothed faces 34 and 35, the face 34 being beveled and the face 35 beinga spur gear, the'bei el face 34 coacting with the gear Wheel 15.

36 isthe main shaft, journaled in the bearing 30 and carrying at the end thereof the spur gear wheel 37, said spur gear 37 coacting with the spur gear face 35, thus establishing a connection from the main shaft, which is suitably driven, by means of the spur gear 37, the spur gear face 35, the bevel face 34 the gear Wheel 15, the pinion '16 and the pinion 17 to the gear Wheels 13 and consequently to the drivers 1.

38 is the rear frame corresponding to the frames 23, but without the track-Way 24, said frame 33 being rigidly secured to the beams 27 and supported by the rear axle structure 39.

All the gear connections to the rear drivers 2 are precisely the same as the connections to the front drivers, the onlyv difference being the segment rail to provide flexibility in the front of thema/chine.. The steering arrangements are just the same, though it will be readily understood that the steering Wheels will be at one convenient point, therefore, the Worm shafts from the vertical steering shafts will extend to that one point which likely will be in the rear of the machine. The main shaftis suit-- ably driven by an engine placed in any con- (Jopie: of this patent may be obtained for i bility venient part, or in fact any suitable arrange ment of motive power,- the features of this 'invention being the transmission of power from the main shaft' to the Wheels, the flexiof the front portio'n 0f the vmachine, the two sets of driving wheels and similarly Vthe two sets ofst-eering wheels, all being points of great importance in the construction of't-raction engines.

What I claim as myinven'tion is:

In a traction engine, a front axle structure, a frame secured thereto', 'a segment rail slidably arranged in said frame, a rear axlel structure, beams connecting said rear axle structure and said segment rail, main shaft frames carrying bearings for the main shaft and auxiliary shafts, cross shafts journaled in said axle structures, vertical shafts journaled at each side of said structures, Wheels having axles ixedly mounted on said vertical shafts, a gear mounted on each of said cross shafts, auxiliary shafts journaled in said auxiliary bearings, gears mounted on said auxiliary shafts having double faces and coacting with said gears of said cross shafts, a main shaft journaled in said main shaft frames having gears iixedly mounted thereon coacting with the other face of said gears on the auxiliary shafts, bevel pinions mounted at the ends of said cross shafts, bevel pinions mounted on said vertical shafts, and bevel gear Wheels {ixedly mounted on the inside of the Wheels and coacting with said bevel gears of said vertical shafts and suitable steeringrmeans supported by said axle structures.

Signed at town of Campbellford, Province of Ontario, this 11th day of July 1911.

WILLIAM DURRAN. Witnesses:

J. P. ARCHER, J. B. FERRIS.

v vev cents each, by addressingY the' Commissioner of Patents,

Washington, D. C. 

